Tidewater Southern Railway section foreman checking his watch to call his crew for lunch, March 12, 1962. The photographer made a series of images of the foreman's hand holding the watch; in 2008, one was selected as one of the "100 Greatest" ever published in Trains magazine. The simple image powerfully combines the grit of railroad work with the importance of time; railroads brought standardized time zones to the United States and Canada in 1883. The Tidewater Southern ran 48 miles through California's Central Valley from Stockton to Turlock. It is now part of the Union Pacific Railroad.